Segmented Hydrocarbon Simulation Tube for Zoned Pressure Control
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Solution Overview
Problem
Current hydrocarbon generation thermal simulation experiments lack an independent reservoir and suffer from complex structures, oil and gas leakage, and difficulty in simulating the temperature and pressure differences between hydrocarbon generation and reservoir zones, affecting hydrocarbon expulsion efficiency and selectivity.
Innovation Solution
A segmented thermal pressurized hydrocarbon generation simulation apparatus with temperature and pressure control modules, hydraulic servo pumps, and blocking modules to simulate hydrocarbon generation, oil storage, and gas storage zones, allowing controlled transfer and storage under varying pressures and temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a sample cylinder is used to pressurize and heat hydrocarbon source rock, then the experiment can be conducted with a simple structure, but there is no independent reservoir and the generated oil and gas cannot be properly simulated to be transferred to a reservoir zone
Solution Approach 1:
The apparatus divides the experimental system into multiple independent segments: a heating zone for hydrocarbon generation and a separate reservoir zone for oil and gas storage. This segmentation allows each zone to be independently controlled and simulated, accurately replicating the natural process where generated hydrocarbons transfer from the generation zone to the reservoir zone, thereby resolving the contradiction between structural simplicity and simulation accuracy.
Solution Approach 2:
A movable partition wall is introduced as an intermediary component between the heating zone and the reservoir zone. This partition wall can move to control the transfer of generated oil and gas from the heating zone to the reservoir zone, enabling the simulation of hydrocarbon migration while maintaining a relatively simple overall structure.
2Adaptability or versatility
If piston-type thermal pressurized hydrocarbon generation experimental apparatuses are used, then hydrocarbon generation can be simulated, but the structure becomes complex and oil and gas leakage is difficult to avoid
Solution Approach 1:
The invention extracts the essential function of hydrocarbon generation simulation from the complex piston-type apparatus and implements it using a simpler heating zone with controlled pressure and temperature. By removing the complex piston mechanism while retaining the core functionality, the design reduces structural complexity and minimizes leakage risks.
Solution Approach 2:
The apparatus uses pneumatic and hydraulic principles to control pressure and temperature in the heating zone, replacing the mechanical piston-type system. This allows for easier control of hydrocarbon generation conditions while maintaining a simpler structure that is less prone to leakage.
3Stress or pressure
If piston-type hydraulic servo pumps are used to control pressure, then pressure control is achieved, but the operation becomes difficult and labor consumption increases
Solution Approach 1:
The apparatus employs self-service pressure control mechanisms where the system automatically regulates pressure based on predefined conditions. The movable partition wall and pressure control valves are designed to automatically adjust pressure distribution between zones without requiring complex manual operation, thereby simplifying the operating process while maintaining effective pressure control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus simplifies operations, reduces labor consumption, and accurately simulates geochemical processes of hydrocarbon generation, expulsion, and storage, while preventing leakage, and allows for efficient data collection.
Implementation Method 1
Each temperature and pressure control module comprises a lower mold base and an upper mold base, with electric heating rods and thermocouples installed on both the lower and upper mold bases
Implementation Method 2
Five piston-type hydraulic servo pumps are arranged above the insulation chamber, each equipped with a pressure sensor. The piston rods of the piston-type hydraulic servo pumps extend into the insulation chamber
Implementation Method 3
The thermocouples are capable of collecting temperature signals and transmitting them to the main control computer
Implementation Method 4
The pressure boosted and blocking module comprises a lower support base and an upper pressure head
Data Source
AI summary
A segmented thermal pressurized hydrocarbon generation simulation apparatus comprises a base, an insulation plate, three temperature and pressure control modules, two pressure boosted and blocking modules, a gold tube for sampling loading, and a control computer. A method applies different temperatures and pressures to the hydrocarbon generation zone, oil storage zone, and gas storage zone of the gold tube. The generated oil and gas flow from the hydrocarbon generation zone through the first blocking zone into the oil storage zone and be stored and altered under specific temperature and pressure conditions in the oil storage zone, and subsequently, the gas passes through the second blocking zone into the gas storage zone for storage. The first blocking zone and the second blocking zone are controlled by the pressure boosted and blocking modules, allowing the transfer of oil and gas from the hydrocarbon generation zone to the oil storage zone as needed.